EP2143299B1 - Membrane ou ensemble membrane pour un transducteur acoustique électrodynamique et haut-parleur comprenant une telle membrane ou un tel ensemble membrane - Google Patents

Membrane ou ensemble membrane pour un transducteur acoustique électrodynamique et haut-parleur comprenant une telle membrane ou un tel ensemble membrane Download PDF

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Publication number
EP2143299B1
EP2143299B1 EP08749264A EP08749264A EP2143299B1 EP 2143299 B1 EP2143299 B1 EP 2143299B1 EP 08749264 A EP08749264 A EP 08749264A EP 08749264 A EP08749264 A EP 08749264A EP 2143299 B1 EP2143299 B1 EP 2143299B1
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EP
European Patent Office
Prior art keywords
membrane
wave
diaphragm
support element
vzw
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
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EP08749264A
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German (de)
English (en)
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EP2143299A1 (fr
Inventor
Raimund Mundorf
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Mundorf EB GmbH
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Mundorf EB GmbH
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Publication of EP2143299A1 publication Critical patent/EP2143299A1/fr
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/323—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/046—Construction
    • H04R9/047—Construction in which the windings of the moving coil lay in the same plane
    • H04R9/048—Construction in which the windings of the moving coil lay in the same plane of the ribbon type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed

Definitions

  • the invention relates to an AMT loudspeaker with a membrane.
  • Membranes for electrodynamic sound transducers are already known in the prior art from a plurality of publications (US Pat. DE OS 2 003 950 ). Such diaphragms for electrodynamic sound transducers can be used in different sound transducers, for example in loudspeakers, but also in microphones, headphones and the like.
  • the membrane has oscillatory membrane parts, namely opposite flank sides or adjacent flank sides and / or wave flanks connected to these flank sides Troughs on, which are formed due to this structure tight air pockets. These air bags are alternately closed and opened for pressing out or for sucking in the air, vzw. for generating corresponding sound waves.
  • the membrane is in operative connection with a suitable device.
  • the membrane itself has along the edge sides conductor tracks, wherein the membrane in an applied magnetic or electrostatic field, vzw. is arranged in an air gap between two pole plates. If electric current now flows, in particular corresponding alternating current signals through the strip conductors, this can cause the edge sides to oscillate, so that the air pockets formed by the flank sides are closed or opened in order to generate corresponding sound waves or a sound pressure.
  • Such membranes can therefore be used for speakers can be used, but is also conceivable - the opposite case, namely - the use of microphones or the like.
  • an annular membrane assembly is described where the membrane is formed into a ring and the membrane is formed essentially of a plastic carrying strap and a plurality of parallel wires disposed thereon.
  • a membrane assembly in which the troughs are realized by means of strip-shaped pole piece laminates, each of the pole piece laminates being formed of two outer flat iron strips and one inner iron strip. Between the leaflet pole piece laminates, the meandering membrane having a thin plastic support band is correspondingly bent, with its longitudinal edges connected to the outer flat iron strips of the pole piece laminates.
  • a meandering strap is provided, which is connected at the upper and lower longitudinal edges with the respective pole pieces.
  • Such membranes and their operating principle are - as already mentioned above - already known from a large number of publications (eg also from US Pat DE 202 07 154 U1 ) and such membranes are used in particular in the so-called AMT loudspeakers ("Air-Motion-Transformer" based on the developments of Dr. Oskar Heil).
  • the basic principle is essentially always the same, with a meandering or concertina-like folded membrane on which correspondingly arranged conductor tracks are used.
  • a "permanent magnetic field” arranged close or open the membrane folds or the air pockets of the membrane when vzw. an alternating current flows through the strip conductors, wherein the air is forced out or sucked out of the air pockets.
  • Air-Motion-Transformers are characterized - due to the very small moving masses - by an excellent impulse behavior and a high efficiency. Air-motion transformers are used especially in hi-fi speakers as tweeters in the frequency range of about 1 kHz to max. about 25 kHz used.
  • Fig. 1 in a schematic representation of an already known in the prior art membrane 1 for an electrodynamic transducer, not shown here in detail, here in particular a speaker diaphragm for a speaker.
  • the here meandering membrane 1 takes this form substantially in their operating condition, which then vzw. is arranged between two pole plates in an air gap.
  • vzw. is arranged between two pole plates in an air gap.
  • the membrane is first processed as a sheet-like element, wherein the corresponding here recognizable traces 2 vzw. be formed on the membrane via appropriate known etching.
  • Clearly visible here are a plurality of wave crests 3 and troughs 4 and the individual peaks 3 and troughs 4 interconnecting and opposite flank sides 5, on which the tracks 2 - as shown - are provided. How out Fig.
  • Fig. 1 is clearly visible, a plurality of air pockets 6 are formed by this arrangement.
  • FIGS. 2 and 3 The operation of the known in the prior art membrane 1 is now in particular in the FIGS. 2 and 3 initially shown schematically. While Fig. 1 the "normal situation" shows, the show FIGS. 2 and 3 For comparison, the corresponding movements of the membrane.
  • FIGS. 2 and 3 With the solid lines, the state of the membrane 2 and the air pockets 6 depending on the respective different current directions and in each case in dashed lines the "normal position" of the membrane 1, when no current flows.
  • Fig. 3 shows the membrane 1 and its movement in the inversion of in Fig. 2 shown current direction, namely the movement of the edge sides 5 in the corresponding reverse direction according to the arrows C 2 .
  • the air pockets 6a, 6b, 6c and 6d now narrow accordingly, so that the air is pushed out of these pockets 6a to 6d (arrows A) and the air pockets 6e, 6f and 6g have widened accordingly, so that the air is sucked into these air pockets 6e, 6f and 6g accordingly (arrows E).
  • Fig. 1 to 3 therefore show the known in the prior art operation of a membrane 1 for an electrodynamic transducer. It is clear that in such membranes 1 now the opposite flank sides 5, each defining an air pocket 6, on the one hand toward each other, on the other hand move away from each other. The flank sides 5 which are directly adjacent to a specific air pocket on the right and left thus always move in the opposite direction to these respective air pockets enclosed by the flank sides. As a result, the corresponding air pockets 6a to 6g are correspondingly narrowed or widened, so that by these movements, the air located between the flank sides 5 either pressed out or - in the countermovement - is sucked in accordance with, as in the FIGS. 2 and 3 shown.
  • the membrane in addition to the desired movement of the flank sides, the membrane also carries out a whole series of undesired additional movements, in particular namely that the flank sides are not displaced laterally parallel to one another as would be desired.
  • Fig. 4a here a schematic representation of a section of a membrane, namely a wave crest 3 from above in dashed lines (rest position) and - in operation - the movement of the flank sides or the correspondingly moving wave crest "3" with the representation of the solid lines.
  • the moving wave crest 3 here has a curvature, that is to say that the lower and upper end regions are each deflected laterally less than the middle region.
  • Fig. 4b in a very simplified schematic representation as individual lines, the "axles of the Wellenberg back 3a" in the rest position (dashed line) and their relative movement to each other with the solid lines.
  • the rest position of the Wellenberg ridge 3a is shown in each case with the dashed line, with their movement, ie the lateral movement in the transverse direction in the clamped here membrane 1 has a corresponding curvature, as clearly seen.
  • Schematically represented are also the axis lines of the wave trough backs 4a.
  • the Wellenberg backs 3a and wave backs 4a in the vertical direction correspondingly vibrate irregularly, so that in addition, these vibrations further burden the system and / or distort, which in turn to nonlinearities in the frequency response and Distortions of the original signal may result.
  • the invention is therefore based on the object, the above-mentioned AMT loudspeaker, from which the invention proceeds to design and further develop that unwanted membrane vibrations are avoided, in particular the effects described above are significantly prevented.
  • a stabilizing element namely a support member achieved by the combination of the features of claim 1 or more support elements are provided which - stabilize the position and orientation of the wave crests and / or troughs - especially in operation the irregular vibrations of the membrane, in particular the unwanted vibrations of the wave mountain ridge or wave trough back and thus the flank sides in the lateral and / or vertical direction can be avoided.
  • a stabilizing element namely a support member achieved by the combination of the features of claim 1 or more support elements are provided which - stabilize the position and orientation of the wave crests and / or troughs - especially in operation the irregular vibrations of the membrane, in particular the unwanted vibrations of the wave mountain ridge or wave trough back and thus the flank sides in the lateral and / or vertical direction can be avoided.
  • nonlinearities in the frequency response and distortions of the original signals are eliminated, so that such an electrodynamic transducer, has decisive acoustic advantages and is significantly improved.
  • the disadvantages mentioned above are therefore avoided
  • Fig. 5 to 20 show - at least partially - a membrane 1 or a membrane arrangement for a, not shown here in detail electrodynamic transducer.
  • the membrane 1 is vzw. designed as a speaker diaphragm and in a loudspeaker, vzw. provided in an AMT speaker, which is schematically in Fig. 18 is shown. Also conceivable is the arrangement of such a membrane 1 in a microphone or in a headphone or the like., Depending on the application.
  • the membrane 1 When installed, in particular arranged in a corresponding device, the membrane 1 is formed substantially meander-shaped, as in particular in the Fig. 5 to 9 . 11 . 13 and 15 to 17 recognizable in a schematic representation.
  • this is vzw. between two pole plates 7 and 8 arranged in an air gap 9 provided between the two pole plates 7 and 8, as in particular in the Fig. 8 . 9 . 11 as well as 15 to 17, 19 and 20 clearly shown.
  • the membrane 1 has a plurality of opposing flank sides 5 and a plurality of wave crests 3 and troughs 4. This is essentially between two adjacent wave crests 3 a wave trough 4 and between two adjacent troughs 4 each have a wave crest 3, so that the corresponding "accordion shape" as shown in the figures, arises.
  • vzw. be traversed by the alternating current. It is also conceivable one or three tracks.
  • vzw. of the electrostatic magnetic field then move the flank sides 5 of the membrane 1 substantially in the transverse direction (X direction) towards each other or away from each other.
  • At least one element 10 which stabilizes the position and / or the orientation of at least one wave crest 3 and / or wave trough 4 is additionally provided.
  • the stabilizing element (10) or vzw. the stabilizing elements (10) can now be designed differently.
  • Vzw. the stabilizing element (10) is designed as a strip-shaped stiffening element (10a) or as a supporting element (10b or 10c, 10d, 10e, 10f), which will be explained below. Due to the arrangement or design of a corresponding element 10 vzw.
  • the Fig. 5a shows the membrane 1 in a schematic representation as well as in the other representations as a simple solid dashed line with the conductors arranged thereon 2. It is here vzw. in each case for each wave crest 3 and for each wave trough 4, a corresponding stiffening element 10a is provided as stabilizing element 10, which is strip-shaped (and could well be called a "supporting element").
  • the strip-shaped stiffening elements 10a are in the axial direction vzw. arranged in the region of the wave crest back 3a or in the region of the wave trough back 4a, as shown.
  • the strip-shaped stiffening elements 10a are vzw. made of aluminum.
  • the stiffening elements 10 a are vzw.
  • the strip-shaped stiffening elements 10a vzw. designed as aluminum strips, where vzw. each wave crest 3 and each wave trough 4 has a corresponding stiffening element 10a.
  • Vzw. can the strip-shaped stiffening elements 10 a similar to the conductor tracks 2 are produced, vzw. via appropriate etching on a Membrane 1 are formed in a corresponding arrangement, so that the then first flat membrane for operation 1 only needs to be folded accordingly, as in the Fig. 5a shown.
  • the stiffening elements 10 a, the vzw. are formed as aluminum strips, have a higher modulus of elasticity than the material of the membrane 1 itself, d. H.
  • the stiffening elements 10a thus have a higher rigidity than the material of the membrane 1, so that stiffened / reinforced by the arrangement of these stiffening elements 10a on the respective Wellenberg back 3a and wave trough back 4a of this region of the membrane 1, which the previously mentioned advantages.
  • Fig. 5b now shows another example slightly different to the example that is in Fig. 5a is differentiated. Good to see again here is the only line-shaped membrane 1, the respective air pockets 6, the tracks 2 and the wave crests 3 and troughs 4 and Wellenberg-back 3a and wave trough back 4a.
  • Reinforcement elements 10a are provided as stabilizing elements 10, but in the area of the wave crests 3 or wave troughs 4, a plurality of axially extending stiffening elements 10a are arranged parallel to each other, here vzw.
  • stiffening elements 10a in the region of a wave crest 3 or wave trough 4, in particular on a wave crest back 3a or on a wave crest back 4a, as in FIG Fig. 5b shown.
  • Vzw. the respective stiffening elements 10a are in turn made strip-shaped, parallel to each other, but are formed as separate elements.
  • This arrangement has opposite to in Fig. 5a
  • the arrangement shown has the advantage that the mobility of the membrane 1 in the arc region, ie in the region of the respective wave crest 3 and the respective wave trough 4 is largely retained and at the same time stabilization of this region is achieved.
  • stiffening elements 10a are only two stiffening elements 10a arranged parallel to one another on a respective wave crest 3 or wave trough 4 or, for example, four stiffening elements 10a arranged parallel to one another, depending on the particular application, the size, dimensioning and design of the respective membrane 1 or the wave crests and / or valleys 3 or 4 and the width of the respective stiffening elements 10a.
  • the 6 and 7 Now show the inventive embodiment for a stabilizing element 10, namely supporting elements 10b.
  • the membrane 1 is arranged in a kind of frame 11, wherein only two lateral elements 11a and 11b of the frame 11 are shown here, or only these two lateral elements 11a / 11b must be provided, depending on the application .
  • the support elements 10b are here now designed and / or arranged so that the - located in the transverse direction of the membrane 1 and adjacent wave crests 3 and troughs 4 and the side frame members 11a and 11b are effectively connected to each other.
  • two vzw. strip-shaped running support elements 10b substantially in the x direction
  • two support elements 10b are arranged, as well as Fig. 7 is apparent.
  • the here from the 6 and 7 apparent support elements 10b are vzw. partially elastic, in particular in order to be able to join in the slight vertical up and down movements of the wave crests 3 or wave troughs 4.
  • the support elements 10b are vzw. formed as an elastic grid element and have a net-like structure, in particular made of fly screen or linen. Vzw. the support elements 10b are glued to the corresponding points of the frame parts 11a and 11b and to the corresponding regions of the wave crests 3 or wave troughs 4.
  • Fig. 8 now shows a membrane 1 and a membrane assembly, wherein the membrane here between two pole plates 7 and 8 in an air gap 9 accordingly is arranged.
  • the frame 11 for the membrane or the lateral frame parts 11a and 11b are also clearly visible.
  • Fig. 8 . 9 and 10 show now an example of a support member 10, namely a support member 10c, which is rod-shaped and substantially in the inner lower portion of an air pocket 6, here at Fig. 8 extends in the axial direction on the inner region of a wave crest 3 or glued or arranged here with the membrane 1.
  • the support member 10c is rod-shaped and vzw. from a metal, vzw. Iron made.
  • a web element 12 is arranged, which here like the Fig. 8 to 10 show, has a substantially rectangular cross-section.
  • the web element 12 - like Fig. 8 shows - is arranged on a pole plate 7.
  • the rod-shaped support member 10c is then pressed against the web member 12 due to a magnetic effect, so that the membrane 1, in particular here at Fig. 8 the wave crest back 3a is fixed accordingly, so the position and orientation of the wave crest back 3a is stabilized.
  • the web element 12 vzw.
  • a corresponding groove so that at the corresponding contact a lateral support of the support member 10c is ensured, as in Fig. 10 shown schematically.
  • Fig. 9 shows are vzw. for each wave crest 3 and 4 corresponding support elements 10c provided for each shaft part.
  • corresponding web elements 12 are provided on the respective pole plates 7 and 8, so that - in the end - at the in Fig. 9 shown arrangement of each wave crest 3 and each wave trough 4 or each Wellenberg back 3a and each shaft part back 4b is aligned or fixed in operation accordingly.
  • the support elements 10c are formed part-rod-shaped, so not necessarily over the entire axial length (Y-direction, longitudinal direction) of the membrane 1 must extend, but only via appropriate Subareas, this depends on the particular application. Also other cross-sectional shapes, so not only round cross-sectional shapes, but vzw. Cross-sectional shapes that do not hinder the movement of the side edges 5 are conceivable for the support elements 10c.
  • the web elements 12 are made of a thermally conductive material, which positively affects the properties of the membrane 1 and on the support elements 10c can also develop a magnetic effect (orientation).
  • Fig. 11 and 12 Now show a membrane 1 and a membrane assembly, wherein the membrane 1 between two pole plates 7 and 8 in an air gap 9, is arranged.
  • Fig. 12 shows a corresponding frame 11 schematically in plan view.
  • the support element 10d the vzw here. is designed as a support profile.
  • the support member 10d is formed as part of the frame 11 and acts on the diaphragm 1 as in FIG Fig. 11 represented, so that here in the representation in Fig. 11 the wave crest 3, namely the wave crest back 3a is well positioned or fixed in its orientation.
  • the diaphragm 1 when the diaphragm 1 is clamped in the frame 11 and the support member 10d extending in the axial direction (Y direction) is provided, the diaphragm 1 can be arranged so that the support member 10d formed as a support profile is provided in the region between two flank sides 5 and with at least one subregion in contact with the respective wave crest 3 for its stabilization, as in Fig. 11 shown.
  • Vzw. are then provided as support profiles trained support elements 10d, as in the Fig. 13 and 14 shown.
  • the frame 11 has vzw. a plurality of support elements 10d extending in the axial direction (Y-direction), which serve to stabilize the meander-shaped membrane 1 and are designed such that they are correspondingly located within the air pockets 6 in the region of the wave crests 3 or wave troughs 4 for their fixation, position / orientation can be arranged or here respectively on the inner surfaces, vzw. under bias, come to rest and / or come from a particular movement of the membrane 1 to the plant.
  • the 15 to 17 show a further example of a support member 10 and a corresponding membrane arrangement between two pole plates 7 and 8. Arranged - as before - the corresponding membrane 1 vzw. within a frame 11 or within frame parts 11a and 11b. Again, here too, as in Fig. 15 shown, a web element 12 is provided.
  • the membrane 1, in particular provided here for the wave crest 3 support element 10e is now vzw. "sword-shaped", which means that this extends substantially over the entire air pocket 6 to the other pole plate 8 and is fixed here.
  • the wave crest 3 or the wave crest back 3a is fixed or aligned accordingly by the sword-shaped support element 10e and the web element 12 lying on the opposite side of the membrane 1.
  • a plurality of web elements 12 and also several sword-shaped running support elements 10e can be provided here. This depends on the particular application and the manner of the necessity of the number of support elements 10 to be provided.
  • FIG. 18 a schematic representation of a speaker 13 from the front with outlet openings 14, behind which the corresponding membrane 1 is arranged.
  • the Fig. 19 and 20 show a further example of a support member 10, namely a grid-shaped support member 10f, as in Fig. 19 clearly shown.
  • the lattice-like support member 10f becomes as shown Fig. 19 and 20 can be seen, vzw. designed such that it has individual strip-shaped elements which extend substantially parallel to the corresponding wave crests 3.
  • the grid-shaped support member 10f is then arranged in the region of a pole plate 7, that the wave crests 3, in particular the wave crests back 3a with the lattice-shaped support member 10f via vzw.
  • a thermally conductive adhesive and / or plastic can be connected together or are connected.
  • the Fig. 19 shows the arrangement of the lattice-shaped support member 10f with the adhesive region or Kuststoff Scheme 15, by means of which the grid-shaped support member 10f is here connected to the wave crests 3. Vzw. the grid-shaped support element 10f is also made of a thermally conductive material.
  • corresponding spacers 16 are also provided on the frame parts 11a and 11b to the arrangement according to the Fig. 20
  • the pole plate 7 does not have recesses which are more specifically described here, in which the grid-shaped supporting element 10f can be arranged or adhesively bonded here.
  • a second additional support element is provided not only on the pole plate 7, but also in the region of the pole plate 8 for the wave troughs 4, which is not shown here.
  • the support element 10f can also be held by a magnetic force on the pole plate 7.
  • membrane 1 or the membrane arrangements described can be used in different electrodynamic sound transducers, in particular in loudspeakers, microphones or the like.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)

Claims (4)

  1. Haut-parleur ATM muni d'une membrane (1), la membrane (1) étant pour l'essentiel réalisée en forme de méandre et étant disposée dans un entrefer (9) prévu entre deux joues magnétiques (7, 8), la membrane (1) présentant une pluralité de flancs (5) ainsi qu'une pluralité de sommets (3) et de creux d'onde (4) et les sommets (3) ainsi que les creux d'onde (4) s'étendant dans le sens longitudinal de la membrane (1) et des pistes conductrices (2) étant prévues le long de la pluralité de flancs (5), des poches d'air (6) étant délimitées par les flancs (5) qui sont mutuellement opposés, les flancs (5), lors du fonctionnement de la membrane (1), se déplaçant soit l'un sur l'autre, soit l'un s'éloignant de l'autre dans le sens transversal de la membrane (1), la membrane (1) étant disposée dans un cadre (11, 11a, 11b), au moins un élément (10) de stabilisation, lors du fonctionnement de la membrane (1), de l'orientation axiale des sommets (3) et des creux d'onde (4) étant prévu et l'élément (10) de stabilisation étant réalisé sous la forme d'un élément support (10b), les sommets (3) ou les creux d'onde (4), qui sont voisins dans le sens transversal de la membrane (1), et les parties de cadre latérales (11a, 11b) étant reliés entre eux de manière fonctionnellement active par l'élément support (10b), l'élément support (10b) étant réalisé en forme de bande et au moins partiellement souple, l'élément support (10b) en forme de bande étant collé aux endroits correspondants des parties de cadre (11a ou 11b) et sur les zones correspondantes des sommets (3) ou des creux d'onde (4), et l'élément support (10b) permettant d'empêcher une oscillation latérale non parallèle des flancs (5) les uns par rapport aux autres ou une courbure des flancs (5) pendant le fonctionnement.
  2. Haut-parleur ATM selon la revendication 1, caractérisé en ce que l'élément support (10b) présente une structure en treillis.
  3. Haut-parleur ATM selon la revendication 2, caractérisé en ce que l'élément support (10b) est fabriqué en filet à insectes ou en lin.
  4. Haut-parleur ATM selon l'une des revendications 1 à 3, caractérisé en ce que deux éléments supports (10b) sont prévus sur le côté supérieur de l'arrangement et deux éléments supports (10b) sont également prévus sur le côté inférieur.
EP08749264A 2007-05-02 2008-04-30 Membrane ou ensemble membrane pour un transducteur acoustique électrodynamique et haut-parleur comprenant une telle membrane ou un tel ensemble membrane Not-in-force EP2143299B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007020847A DE102007020847B4 (de) 2007-05-02 2007-05-02 Membran-Anordnung für einen elektrodynamischen Schallwandler und Lautsprecher mit einer derartigen Membran-Anordnung
PCT/EP2008/003517 WO2008135221A1 (fr) 2007-05-02 2008-04-30 Membrane ou ensemble membrane pour un transducteur acoustique électrodynamique et haut-parleur comprenant une telle membrane ou un tel ensemble membrane

Publications (2)

Publication Number Publication Date
EP2143299A1 EP2143299A1 (fr) 2010-01-13
EP2143299B1 true EP2143299B1 (fr) 2012-01-25

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EP08749264A Not-in-force EP2143299B1 (fr) 2007-05-02 2008-04-30 Membrane ou ensemble membrane pour un transducteur acoustique électrodynamique et haut-parleur comprenant une telle membrane ou un tel ensemble membrane

Country Status (6)

Country Link
US (1) US8208678B2 (fr)
EP (1) EP2143299B1 (fr)
AT (1) ATE543344T1 (fr)
DE (2) DE102007020847B4 (fr)
ES (1) ES2380273T3 (fr)
WO (1) WO2008135221A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110222722A1 (en) * 2004-05-28 2011-09-15 Lennart Hoglund Loudspeaker with distributed driving of the membrane
JP6184478B2 (ja) 2012-05-09 2017-08-23 ジェイ． クリステンセン，ユージーン 広範囲広角ラウドスピーカドライバ
CN102868959B (zh) * 2012-10-12 2015-01-21 张百良 铝带扬声器
US10129650B2 (en) * 2013-12-19 2018-11-13 Tang Band Industries Co., Ltd. Vibration unit for acoustic arrangement
DE102014108984B4 (de) 2014-06-26 2017-04-06 Tdk Corporation Wandlerelement
AT16590U1 (de) 2015-02-25 2020-02-15 Dipl Ing Michael Lorenz Lautsprecheranordnung
KR102349453B1 (ko) * 2015-07-24 2022-01-10 삼성전자주식회사 스피커 장치 및 이를 포함하는 전자 장치
GB201516297D0 (en) * 2015-09-15 2015-10-28 Pss Belgium Nv Loudspeaker
DE212015000330U1 (de) * 2015-12-21 2018-07-30 Ko-Chung Teng Pneumatische Hochtönereinheit mit verbesserter Schallmembran und Struktur
KR101778293B1 (ko) * 2016-10-14 2017-09-13 부전전자 주식회사 주름 진동판을 이용한 고주파 스피커
US10284945B2 (en) * 2016-11-30 2019-05-07 Eugene Julius Christensen Air motion transformer passive radiator for loudspeaker
US10708694B2 (en) 2017-09-11 2020-07-07 Apple Inc. Continuous surround
US10609474B2 (en) * 2017-10-18 2020-03-31 xMEMS Labs, Inc. Air pulse generating element and manufacturing method thereof
US10425732B1 (en) 2018-04-05 2019-09-24 xMEMS Labs, Inc. Sound producing device
CN113411730B (zh) * 2020-03-16 2022-11-25 万魔声学股份有限公司 一种扬声器
GB2621479A (en) 2022-08-08 2024-02-14 Arya Audio Labs Ltd Electroacoustic transducer
WO2024039265A1 (fr) * 2022-08-18 2024-02-22 Ильдар Васимович САФИУЛЛИН Émetteur électrodynamique

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2003950A1 (de) * 1969-02-19 1970-09-10 Oskar Heil Akustischer Wandler
US4056697A (en) * 1976-09-03 1977-11-01 Oskar Heil Movable diaphragm connector method flexible hinge diaphragm surround and electro-acoustic transducer with folded diaphragm with intermediate flexible portions
WO1998020705A1 (fr) * 1996-11-08 1998-05-14 Cerwin Vega, Inc. Suspension amelioree pour transducteur haute puissance a ruban plisse

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL22991C (fr) * 1927-03-12
JPS5955699A (ja) * 1982-09-24 1984-03-30 Toshiba Corp 動電型全面駆動スピ−カ
US6535612B1 (en) * 1998-12-07 2003-03-18 American Technology Corporation Electroacoustic transducer with diaphragm securing structure and method
JP3820851B2 (ja) * 2000-07-13 2006-09-13 敏孝 丈井 圧電スピーカー
DE20207154U1 (de) 2002-05-07 2002-09-19 Gerkinsmeyer Norman Magnetsystem und Treiber

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2003950A1 (de) * 1969-02-19 1970-09-10 Oskar Heil Akustischer Wandler
US4056697A (en) * 1976-09-03 1977-11-01 Oskar Heil Movable diaphragm connector method flexible hinge diaphragm surround and electro-acoustic transducer with folded diaphragm with intermediate flexible portions
WO1998020705A1 (fr) * 1996-11-08 1998-05-14 Cerwin Vega, Inc. Suspension amelioree pour transducteur haute puissance a ruban plisse

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DE112008001166A5 (de) 2010-05-06
ATE543344T1 (de) 2012-02-15
DE102007020847A1 (de) 2008-11-06
US8208678B2 (en) 2012-06-26
US20100098271A1 (en) 2010-04-22
WO2008135221A1 (fr) 2008-11-13
EP2143299A1 (fr) 2010-01-13
ES2380273T3 (es) 2012-05-10
DE102007020847B4 (de) 2009-11-26

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